This thesis targets the name of Chu-Dong and deeply reports the source of Chu-Dong by language point view.There are six chapters in this thesis:Chapter One” Introduction”.Chapter Two “We analyze the structures of Hakanese name a place, language, and phrases”.Chapter Three”.Chapter Four “Explain some names of places by vocal and phrases”.Chapter Five “Discuss culture of names of places in Chu-Dong area"Chapter Six “Conclusion”.